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Finding the Fourth Proportional to 525,141.01, 724,697.55 and 298,786.51

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Solution

The fourth proportional to 525,141.01, 724,697.55 and 298,786.51 is: 412,327.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,141.01 : 724,697.55 = 298,786.51 : x
  2. Step 2: Convert to fraction form
    525,141.01/724,697.55 = 298,786.51/x
  3. Step 3: Cross multiply
    525,141.01x = 724,697.55 × 298,786.51
  4. Step 4: Simplify right side
    525,141.01x = 216,529,850,276.12
  5. Step 5: Solve for x
    x = 216,529,850,276.12/525,141.01
  6. Step 6: Final answer
    x = 412,327.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.